Tomas Francis says Wales will target improvements in every area of their game as they prepare for a quick-fire return Test match against England.
Wales' opening World Cup warm-up clash ended in a 33-19 defeat at Twickenham.
To make matters far worse, fly-half Gareth Anscombe suffered a serious knee ligament injury that has ruled him out of the tournament in Japan.
Anscombe joined number eight Taulupe Faletau (broken collarbone) in being sidelined from the competition, dealing Wales a second major injury blow in the space of 11 days.
But World Cup preparations continue at pace, with England arriving in Cardiff on Saturday and looking to inflict a first home defeat on Wales since they were beaten by New Zealand in November 2017.
Wales have reeled off 10 successive victories at the Principality Stadium since then, although their overall record 14-Test unbeaten run and hopes of becoming world rugby's number one-ranked nation ended in south west London.